TOUGH new curbs to protect kids from internet porn were unveiled today in a hard-fought victory for rookie MP Claire Perry.

Mum-of-three Mrs Perry has been battling with ministers since the day she was elected for a change in the law to block all adult material from family computers.

Full marks to the dogged Tory, who never gave up – even when internet giants convinced officials her idea was impossible.

Perry Power: MP Claire

Four companies have now caved in to Perry power and will force customers to opt IN if they want to view explicit sites in future.

The crackdown comes after a tireless campaign mounted by the Devizes MP. Mrs Perry hounded ministers into forcing internet providers to adapt the system used to block paedophile material to cover all pornography.

She kept on fighting, even when an ill-tempered meeting with web chiefs broke down last May – as I reported at the time in the News of the World.

David Cameron today announced that all porn will be blocked when a customer buys a new internet package from BT, Sky, Talk Talk or Virgin – unless they opt in.

Mrs Perry should be delighted with her stunning success but has vowed to continue campaigning for even more safeguards.

She said: “I see this as the first step in a long journey. The government is moving along the right lines. Next we need to be protecting all those millions who already have an internet connection.

“I have no desire to ban porn. All I want is to stop children stumbling across graphic images by accident.”